26 C.F.R. § 1.1502-0 Effective dates.
Title 26 - Internal Revenue
(a) The regulations under section 1502 are applicable to taxable years beginning after December 31, 1965, except as otherwise provided therein. (b) The provisions of §§1.1502–0A through 1.1502–3A, 1.1502–10A through 1.1502–19A, and 1.1502–30A through 1.1502–51A (as contained in the 26 CFR part 1 edition revised April 1, 1996) are applicable to taxable years beginning before January 1, 1966. [T.D. 8677, 61 FR 33325, June 27, 1996]
Title 26: Internal Revenue
PART 1—INCOME TAXES
Consolidated Return Regulations
§ 1.1502-0 Effective dates.